Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: albilabiata: Name from Latin 'albus' for white and 'labiatus' for lipped, referring to its distinct white-edged mouth which strongly contrasts against a very dark, beard-like patch below the mouth.
More on authors: Last & McEachran.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien bathydemersaal; diepte 900 - 1000 m (Ref. 58023). Deep-water
Southwest Pacific: New Zealand.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 64.6 cm TL mannelijk / geslacht onbekend; (Ref. 58023)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species is characterized by the following: very long tail, 1.4-1.5 times disc length, 2.8-3.0 times ventral head length, 6.2-6.6 times snout length; orbit is moderately large, 2.5-2.7 in preorbital snout length; tail base relatively broad, width at pelvic-fin insertions 2.7-3.0 times width at midlength; anterior lobe of pelvic fin spatulate; dorsal disc largely naked; middorsal surface of tail naked, apart from non-linear row of paired thorns extending onto posterior disc; dorsolateral surface of tail lacking thorns; snout length 2.4-2.6 times distance from snout tip to rostral thorn; calcified rostral shaft short; single preorbital thorn, posterior thorns absent; ventral disc and tail naked; alar and malar thorns of mature males united to form a broad patch over most of outer pectoral fin; ventral surface much darker than dorsal surface; very dark, beard-like patch beneath mouth, edge of mouth white; no rows of pale-edged pores on ventral surface; nuchal pore band very distinct; total pectoral radials 68-70; predorsal vertebrae 106-110; tooth rows in upper jaw 45-60 (Ref. 58023).
Body shape (shape guide): other.
Male paratypes were found to be immature at 50.7 cm TL, no information re juveniles (Ref. 58023).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Last, P.R. and J.D. McEachran, 2006. New softnose skate genus Brochiraja from New Zealand (Rajidae: Arhynchobatinae) with description of four new species. N. Z. J. Mar. Freshwater Res. 40(1):65-90. (Ref. 58023)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
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Schattingen op basis van modellen
Gewenste temperatuur (Ref.
123201): 1.9 - 3.6, mean 2.6 °C (based on 194 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00279 - 0.01081), b=3.11 (2.94 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Moderate to high vulnerability (46 of 100).
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